The hcf is 21
HCF(10, 84) = 2 HCF(10, 84) = 2 HCF(10, 84) = 2 HCF(10, 84) = 2
What is the h c f of 51 63 and 21
HCF(40, 63) = 1
84
hcf = 42, lcm = 84.
21. 63 = 32 x 7 84 = 22 x 3 x 7 hcf = 3 x 7 = 21
The GCF is 28.
The GCF is 9.
The GCF is 9.
The GCF is 7.
Since 12 is a factor of 84, it is automatically the GCF.